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| author | Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> | 2011-07-18 07:48:07 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-07-26 14:42:12 +0200 |
| commit | 6a11cf48a569d747bcf374a8da88393dc209a347 (patch) | |
| tree | 032e3b67929abdc92e6b2aead865a0a6de9e060b /spl | |
| parent | 4e0fbb98fcca8cee2995debc554fa98d59adefb0 (diff) | |
| download | u-boot-imx-6a11cf48a569d747bcf374a8da88393dc209a347.zip u-boot-imx-6a11cf48a569d747bcf374a8da88393dc209a347.tar.gz u-boot-imx-6a11cf48a569d747bcf374a8da88393dc209a347.tar.bz2 | |
spl: add initial support for a generic SPL framework
Signed-off-by: Aneesh V <aneesh@ti.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Diffstat (limited to 'spl')
| -rw-r--r-- | spl/.gitignore | 4 | ||||
| -rw-r--r-- | spl/Makefile | 100 |
2 files changed, 104 insertions, 0 deletions
diff --git a/spl/.gitignore b/spl/.gitignore new file mode 100644 index 0000000..7c88147 --- /dev/null +++ b/spl/.gitignore @@ -0,0 +1,4 @@ +u-boot-spl +u-boot-spl.bin +u-boot-spl.lds +u-boot-spl.map diff --git a/spl/Makefile b/spl/Makefile new file mode 100644 index 0000000..32e6a09 --- /dev/null +++ b/spl/Makefile @@ -0,0 +1,100 @@ +# +# (C) Copyright 2000-2011 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# (C) Copyright 2011 +# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com. +# +# (C) Copyright 2011 +# Texas Instruments Incorporated - http://www.ti.com/ +# Aneesh V <aneesh@ti.com> +# +# This file is released under the terms of GPL v2 and any later version. +# See the file COPYING in the root directory of the source tree for details. +# +# Based on top-level Makefile. +# + +CONFIG_SPL_BUILD := y +export CONFIG_SPL_BUILD + +include $(TOPDIR)/config.mk + +# We want the final binaries in this directory +obj := $(OBJTREE)/spl/ + +HAVE_VENDOR_COMMON_LIB := $(shell [ -f $(SRCTREE)/board/$(VENDOR)/common/Makefile ] \ + && echo y || echo n) + +START := $(CPUDIR)/start.o + +LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o +LIBS-y += $(CPUDIR)/lib$(CPU).o +ifdef SOC +LIBS-y += $(CPUDIR)/$(SOC)/lib$(SOC).o +endif +LIBS-y += board/$(BOARDDIR)/lib$(BOARD).o +LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/lib$(VENDOR).o + +START := $(addprefix $(SPLTREE)/,$(START)) +LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y))) + +__START := $(subst $(obj),,$(START)) +__LIBS := $(subst $(obj),,$(LIBS)) + +# Linker Script +ifdef CONFIG_SPL_LDSCRIPT +# need to strip off double quotes +LDSCRIPT := $(addprefix $(SRCTREE)/,$(subst ",,$(CONFIG_SPL_LDSCRIPT))) +endif + +ifeq ($(wildcard $(LDSCRIPT)),) + LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds +endif +ifeq ($(wildcard $(LDSCRIPT)),) + LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds +endif +ifeq ($(wildcard $(LDSCRIPT)),) +$(error could not find linker script) +endif + +# Special flags for CPP when processing the linker script. +# Pass the version down so we can handle backwards compatibility +# on the fly. +LDPPFLAGS += \ + -include $(TOPDIR)/include/u-boot/u-boot.lds.h \ + -include $(OBJTREE)/include/config.h \ + $(shell $(LD) --version | \ + sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') + +ALL-y += $(obj)u-boot-spl.bin + +all: $(ALL-y) + +$(obj)u-boot-spl.bin: $(obj)u-boot-spl + $(OBJCOPY) $(OBJCFLAGS) -O binary $< $@ + +GEN_UBOOT = \ + UNDEF_SYM=`$(OBJDUMP) -x $(LIBS) | \ + sed -n -e 's/.*\($(SYM_PREFIX)__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\ + cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $$UNDEF_SYM $(__START) \ + --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \ + -Map u-boot-spl.map -o u-boot-spl + +$(obj)u-boot-spl: depend $(START) $(LIBS) $(obj)u-boot-spl.lds + $(GEN_UBOOT) + +$(START): depend + $(MAKE) -C $(SRCTREE)/$(CPUDIR) $@ + +$(LIBS): depend + $(MAKE) -C $(SRCTREE)$(dir $(subst $(SPLTREE),,$@)) + +$(obj)u-boot-spl.lds: $(LDSCRIPT) depend + $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - < $< > $@ + +depend: $(obj).depend +.PHONY: depend + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk |